using CapMachine.Core;
using CapMachine.Wpf.Models.PPCalc;
using Prism.Commands;
using Prism.Services.Dialogs;
using System;
using System.Globalization;
using System.Windows;

namespace CapMachine.Wpf.ViewModels
{
    public class DialogTherdyConfigViewModel : DialogViewModel
    {
        private const string H3TempOffsetConfigKey = "Therdy_H3TempOffset_C";

        public DialogTherdyConfigViewModel()
        {
            Title = "COP物性参数回差";

            TherdyConfig = new TherdyConfigModel();
            LoadConfig();
        }

        public TherdyConfigModel TherdyConfig { get; }

        private string _h3TempOffsetText = string.Empty;
        public string H3TempOffsetText
        {
            get { return _h3TempOffsetText; }
            set { _h3TempOffsetText = value; RaisePropertyChanged(); }
        }

        private DelegateCommand saveCmd;
        public DelegateCommand SaveCmd
        {
            get
            {
                if (saveCmd == null)
                {
                    saveCmd = new DelegateCommand(SaveCmdMethod);
                }
                return saveCmd;
            }
            set { saveCmd = value; }
        }

        private DelegateCommand cancelCmd;
        public DelegateCommand CancelCmd
        {
            get
            {
                if (cancelCmd == null)
                {
                    cancelCmd = new DelegateCommand(CancelCmdMethod);
                }
                return cancelCmd;
            }
            set { cancelCmd = value; }
        }

        private void LoadConfig()
        {
            try
            {
                string raw = ConfigHelper.GetValue(H3TempOffsetConfigKey);
                if (!string.IsNullOrWhiteSpace(raw) && double.TryParse(raw, NumberStyles.Float, CultureInfo.InvariantCulture, out var v))
                {
                    TherdyConfig.H3TempOffset_C = v;
                }
            }
            catch
            {
            }

            H3TempOffsetText = TherdyConfig.H3TempOffset_C.ToString(CultureInfo.InvariantCulture);
        }

        private void SaveConfig()
        {
            ConfigHelper.SetValue(H3TempOffsetConfigKey, TherdyConfig.H3TempOffset_C.ToString(CultureInfo.InvariantCulture));
        }

        private void SaveCmdMethod()
        {
            try
            {
                if (!double.TryParse(H3TempOffsetText, NumberStyles.Float, CultureInfo.InvariantCulture, out var offsetC))
                {
                    MessageBox.Show("回差值格式不正确，请输入数字（例如 -10）。", "提示", MessageBoxButton.OK, MessageBoxImage.Warning);
                    return;
                }

                TherdyConfig.H3TempOffset_C = offsetC;
                SaveConfig();
                DialogParameters pars = new DialogParameters
                {
                    { "H3TempOffset_C", TherdyConfig.H3TempOffset_C }
                };
                RaiseRequestClose(new DialogResult(ButtonResult.OK, pars));
            }
            catch
            {
                RaiseRequestClose(new DialogResult(ButtonResult.Cancel));
            }
        }

        private void CancelCmdMethod()
        {
            RaiseRequestClose(new DialogResult(ButtonResult.Cancel));
        }

        public override void OnDialogOpened(IDialogParameters parameters)
        {
            LoadConfig();
        }
    }
}